i suggest you to install it yourself. the dealership charged me the total of $408.50. the OEM spoiler at the dealership cost $285. i got the $50 off but they only take off $47 (i dont know why). so they rounded up charging me the spoiler for $238 (if your in CA, $238 + tax is $258.50) and the install cost $150. so the total is $408.50. hope that helps.
you can get alot of aftermarkey type spoilers for around the same price if not cheaper than obtaining one from the dealer. unless of course that is the one you prefer...then by all means go for it. but check bbist.com just to see if you like one of those. the application is the same process. also give autofashion a call. autofashionusa.com. hope that helps a little.
ohh ohh i got better idea, you get one from bbist.com the badass carbonfiber one and ill trade you for my 'factory' spoiler from the dealer